Apparatus for pneumatically separating sheets.



J. HEINRICH. APPARATUS FOR PNEUMATIGALLY- SEPARATING SHEETS. APPLICATION FILED MAY 22, 1013.

Patented July 29, 1913.

UNITED-STATES;

PATENT ()FFICE.

Jason HEINRICH, or NUREMBERG, GERMANY, ASSIGNOR TO THE FIRM or-MErAL 'PAPIER-ngpggn ARBEn-BLAT METALLWERKE A'KTIENGE'SELLSCHAFT, or uu- NICH, GERMANY.

APPARATUS- roia PNEUMATICALLY ISEPARA'IIING snnnrs.

Specification of Letters Patent.

- Patented July 29,1912.

, Applicatidn filed May 22, 1913. Serial No. 769,328.

To all whom it may concern:

Be it known that I, JAoos Hnrnmorr, of

Nuremberg, Germany, have invented certain new and'useful Improvements in Apparatus for Pneumatically Separating Sheets, of which the following is a specification.

This invention relates to apparatus for separately removing sheets from a pile, as for example from a pile wherein sheets of metal foil alternate with intermediate sheets of other material, the sheets of foil being removed from the pile in one direction, and the intermediate sheets being removed in another direction.

The object of the invention is to provide apparatus of this class, which operates with greater precision than has hitherto been attained, the apparatus having means whereby the pile of sheets is l e-adjusted after each lateral withdrawal of a sheet or sheets, and

means whereby sheets accidentally lifted from the pile, and then dropped, are guided back to the pile.

The invention is illustrated in the accompanying drawing, in which Figure 1 is a vertical section of the appa- 'ratus,'ar.d Fig. 2 a section perpendicular to the plane of Fig. 2.

In the drawing a designates the pile of sheets, which is supported on a table 76 surrounded by four walls 6, the latter being hinged at their bottom edges so that they can be rocked outward into horizontal posi-- tion as indicated by broken lines in Fig. l.

The walls Z2 have wipers 0 at their upper edges, consisting of inwardly directed narrow flanges. A vertically movable-suction appliance d is arranged above the table, so that it can be lowered onto the pile to pick up the top sheet by suction; broken lines in the drawing indicate the raised position of the suction appliance ah A second suction appliance c is arranged to move to and from the table for the purpose of removing sheets in a lateral directlon. The appliances (1 and e operate alternately, and in the case of a pile of metal foil sheets alternating with intermediate sheets of other material, the appliance d removes the intermediate sheets, and the appliance e removes the foil sheets.

The walls I) are connected by links to a vertically movable frame 9. The latter has downwardly directed arms h which ride on cams i, so that by the rotation of the cams the frame is alternately raised and lowered, and rocks the walls I) by means of the links f. The operations are timed so that the walls b are vertical while the suction appliance d is ascending with a sheet removed from the pile,and that the walls rock down into horizontal position just in time to allow the approaching appliance e to move over the pile for the. purpose of picking up the next sheet and laterally removing same. As soon as the appliance a has receded sufliciently, the walls are again erected, and by lightly touching the sides of the pile, or the edges of such sheets as have been displaced, they re-adjust the sheets on thetable 70. If asheet of foil accidentally adheres to a sheet whichthe appliance d is lifting from the pile, this toil will be loosened and detached by the wipers c, and drops back on to the pile,

guidedby the walls 6. 4 a

The suction whereby both the appliances single continuously working pump. i

What I claim as'my invention and desire to secure by Letters Patent of the United States is 1. In apparatus for removing single sheets from a pile, the combination with a support for'the pile, of means movable toward and away from said pile for alternately completely inc'losing'and exposing all sides of said pile, a plurality of means adapted respectively to raise the single sheets from said pile and move single sheets sheets from a pile, the combination of' a,

support for the pile, a. horizontally movable suction appliance for laterally removing sheets from the pile, a vertically movable suction appliance for vertically removing sheets from the pile, hinged walls arranged 75 cl and e act may be produced by means of a laterally of said support, and adapted to be erected at the sides thereof around the pile,- wipers on said Walls, adapted to engage the edges of sheets lifted by said vertically moving suction appliance and liieansfor; alternately erecting and lowering said. Walls.

4:111 apparatus for separately removing sheets froln a pile, the combination of'a support for the pile, a movable suction applia-nce for laterally removing sheets from the pile, hinged Walls arranged laterally of'said' supportg and adapted to be erected the sides thereof around the pile, a vertically movable frame, 'linksconnecting said Walls to said frame, and means for alternately,

,raising and loweringsaid frame. "In WitIlQSS whereof'I-have signed the specification 1 in the presence of two wit- JACOB HEINRICH.

Witnesses:

OSCAR Boon, RALPH W. Fox.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, I). C. 

